And while the heiress was at the top of the wish list for the "Supernatural" writers as the guest star who could best mock the concept of celebrity status, Kripke and gang never thought Paris would go for it.

"We never expected in a million years that she would do it, but I spoke to her and she got the joke immediately and signed on quickly," he revealed. "I give her a lot of credit for being a hell of a good sport. The fact that she was game to play the part speaks volumes about her sense of humor."